Investigation on Iron Ore Grinding based on Particle Size Distribution and Liberation

Abstract

In the iron and steel industry, the production of narrow particle size distribution (PSD) for pellet feed making with acceptable liberation of valuables from the iron ore is very difficult. This study has been carried out to achieve desired pellet feed with narrow PSD and maximum liberation of hematite from the iron ore. The iron ores have been collected from three different sources (mines in Karnataka state) and milled. The iron ores and the blend feed samples were analyzed in the Optical Microscope (OM) and Quantitative Evaluation of Minerals by Scanning Electron Microscopy (QEMSCAN) to understand the PSD and percentage of hematite liberation. The new approach is adapted to identify the retention time (RT) of the iron ore in the mill, and the total RT taken for the blend sample in the Bond’s ball mill is considered as the reference grinding time for milling in the Laboratory Ball Mill (LBM). The desired narrow PSD (− 150/+ 10 µm) with acceptable hematite liberation is achieved at an optimal grinding time of 7 min in the LBM.

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References

  1. 1.

    Dwarapudi S, Devi T U, Mohan Rao S, and Ranjan M, ISIJ Int 48 (2008) 768.

    CAS  Article  Google Scholar 

  2. 2.

    Hanumanthappa H, Vardhan H, Mandela G R, Kaza M, Sah R, and Shanmugam B K, Miner Eng 145 (2020) 106091.

    CAS  Article  Google Scholar 

  3. 3.

    Shanmugam B K, Vardhan H, Mandela G R, Kaza M, Sah R, and H H, Int J Coal Prep Util 0 (2019) 1.

  4. 4.

    Shanmugam B K, Vardhan H, Mandela G R, Kaza M, Sah R, and H H, Energy Sources, Part A Recover Util Environ Eff 00 (2019) 1.

  5. 5.

    Gaudin A M, Principles of Mineral Dressing, McGraw-Hill Book Co, New York (1939).

    Google Scholar 

  6. 6.

    Ahmadi R and Shahsavari S, Miner Eng 22 (2009) 104.

    CAS  Article  Google Scholar 

  7. 7.

    Kumar R, Trans. Indian Inst Met 70 (2017) 253.

    Article  Google Scholar 

  8. 8.

    Hanumanthappa H, Vardhan H, Mandela G R, Kaza M, Sah R, and Shanmugam B K, AIP Conf Proc (2020).

  9. 9.

    Bond FC, Br Chem Eng 80 (1960) 543.

    Google Scholar 

  10. 10.

    Gupta V K and Hussain M, Trans Indian Inst Met 70 (2017) 303.

    Article  Google Scholar 

  11. 11.

    Mosher J B and Tague C B, Miner Eng 14 (2001) 1187.

    CAS  Article  Google Scholar 

  12. 12.

    Jankovic, Suthers S, Wills T, and Valery W, Miner Eng 71 (2015) 133.

  13. 13.

    Deniz V, Umucu Y, and Çayirli S, Part Sci Technol 30 (2012) 403.

    CAS  Article  Google Scholar 

  14. 14.

    Hacıfazlıoğlu H and Korkmaz A V, Part Sci Technol 0 (2019) 1.

  15. 15.

    Hassanzadeh A and Hassanzadeh A, Geosystem Eng 9328 (2018) 1.

    Google Scholar 

  16. 16.

    Cho H and Austin L G, Powder Technol 124 (2002) 112.

    CAS  Article  Google Scholar 

  17. 17.

    Chimwani N, Mulenga F K, Hildebrandt D, Glasser D, and Bwalya M M, Miner Eng 73 (2015) 116.

    CAS  Article  Google Scholar 

  18. 18.

    Mulenga F K and Chimwani N., Int J Miner Process 125 (2013) 39.

    CAS  Article  Google Scholar 

  19. 19.

    Gupta V K and Patel J P, Powder Technol 274 (2015) 163.

    CAS  Article  Google Scholar 

  20. 20.

    Hanumanthappa H, Vardhan H, Mandela G R, Kaza M, Sah R, and Shanmugam B K, Mining, Metall Explor 37 (2020) 481.

    Google Scholar 

  21. 21.

    Umadevi T, Kumar M G S, Kumar S, Prasad C S G, and Ranjan M, Ironmak Steelmak 35 (2013) 327.

    Article  Google Scholar 

Download references

Acknowledgements

The present research work is in joint collaboration with NITK, Surathkal, and JSW Steel Pvt. Ltd., Ballari. The authors are thankful to the management of JSW and MHRD, India, for all the support extended during the course of this research work.

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Correspondence to Harish Hanumanthappa.

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Hanumanthappa, H., Vardhan, H., Mandela, G.R. et al. Investigation on Iron Ore Grinding based on Particle Size Distribution and Liberation. Trans Indian Inst Met (2020). https://doi.org/10.1007/s12666-020-01999-5

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Keywords

  • Particle size distribution
  • Retention time
  • Bond Work Index and circulating load
  • Optical microscope
  • QEMSCAN